Frequently asked questions

Classy is a web-based revision app for secondary-school and university students: upload your course materials (PDF, PowerPoint, Word, photos of notes or an audio recording) and artificial intelligence analyses them to produce a summary video, a detailed explanation of each concept, quizzes with feedback, mock exams and a revision timetable leading up to your exam.

Secondary-school and university students. When you sign up or upload course materials, you choose your level (lower secondary, upper secondary or university): the vocabulary, examples and quiz difficulty adapt to suit you.

Any subject with written or recorded course materials: maths, physics and chemistry, biology and earth sciences, economics and sociology, history and geography, philosophy, law, business management, medicine, languages… Formulae are neatly formatted and graphs are plotted from real equations.

No: Classy works in your browser, on your phone, tablet or computer. You can also add it to your phone’s home screen as an app, in one click.

Yes: the sample course (‘The market: supply, demand and equilibrium’) is open to everyone, complete with its video, topics, quizzes, mind map and revision sheet.

One or more files for the same course, mixing formats if you like: PDF, PowerPoint (.pptx), Word (.docx), text, photos of your notes, or an audio recording of the lesson or lecture (MP3, M4A, WAV…, 45 minutes maximum). Up to 20 files per course, 50 MB per file.

The course outline and summary video are usually ready in 1 to 2 minutes. The topics are then prepared one by one (1 to 3 minutes each): you can start watching the video in the meantime.

The AI reads the whole document, identifies the concepts and the links between them, then divides the course into 3 to 12 topics depending on its length, in a logical order. Each topic has its own page, short video and quiz.

You can attach past tests, university exam papers or exercises from your teacher (up to 10 files per course), or paste in questions. Classy uses them as a guide for the format and difficulty of your quizzes and mock exams, and to work out which questions are likely to come up.

Classy uses YOUR course materials and shows the page or slide each passage comes from: one click opens the source. If you spot an error, you can report it in one click.

No. Classy helps you understand your course and practise: it explains, gets you thinking and marks your answers, but it doesn't do your homework for you.

Yes. Your files are stored in a private space that only you can access, and you can delete them at any time, along with your account.

To sign in (with your username or email) and recover your account if you forget your password. It is never used for advertising. Secondary-school pupils can use a parent's address.

Every account starts with a one-month trial with all Pro features, no bank card required. Pro costs 4,99 € per month (or 47,90 € per year) for 12 courses per month, with podcasts, audio, likely exam questions and Anki export; Max costs 14,99 € per month for 30 courses per month and 1 in-depth analysis per month; Group costs 19,99 € per month for 5 accounts, or 4 € per person.

As soon as you sign up, you get a month of Classy Pro, with everything included and no payment card required. Afterwards, you can still view your previously analysed courses, and the course assistant remains free (subject to a usage limit). To analyse new courses and access all the features again, upgrade to Pro.

After the trial month: analysis of new courses (12 per month), mock exams, AI-powered exercises and marking, the podcast, audio, likely exam questions, and Anki and Quizlet export. On the free plan, you keep your previously analysed courses and access to the assistant, subject to a usage limit.

Max includes everything in Pro, with 30 courses analysed per month instead of 12, three times the AI usage for the assistant and exercises, and 1 in-depth analysis per month: more powerful AI for your most difficult course. Pro subscribers can upgrade to Max at any time from the ‘Plans’ page.

Create a referral code for each friend in ‘My account’ (each code can only be used once): your friend gets -20 % off their Pro subscription, and you get -50 % for 3 months once they subscribe.

A single subscription gives 5 accounts access to the Pro plan. The account holder can add up to 4 friends using their Classy usernames from ‘My account’.

With one click from ‘My account’. Your subscription stays active until the end of the paid period, with no further charges.

From the app, use the ‘Help and contact’ link at the bottom of the page: ask a question, report a problem or suggest an idea, and we’ll reply as soon as possible.